.test-page {
    height: 100%;
    width: 100%;
    background-color: palegreen;
}
.test-box {
    width: 400px;
    height: 300px;
    background-color: rgba(#c82858, .3);
    @include position();

    .cc-box {
        width: 200px;
        height: 50px;
        background-color: #e4393c;
        @include position_center();
    }
}